Packaging machine



y 29, 1930- c. BALDENHOFER 1,771,869 PACKAGING MACHINE Filed April 26,1928 15 sheets-sheet 1 A TTOE. A/f Y5 y 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 2 WWW @Mm/L J W+JIM/ July 29, 1930. c, A E Q 7 1,771,869

I PA'CKAGING MACHINE Filed April 26, 1928 15 Shets-Sheet 3 1 llIIIIIII III INVENTOR BY J r W ATTORNEY y 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 4 f l/Yl/ENTOL y29, 1930- I c. BALDENHOFER I 1,771,869

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 5 /N I E N TOEJMZM? A TTOGNEYJ July 29; 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April.26, 1928 15 Sheets-Sheet 6 INVENTORATTORNEY July 29, 1930. .g,- 0 ER 1,771,869

- IJAOIKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet ATTORNEY.

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 8 7s we /14 v /69[6 m5 I41 142 I43 mmmk BY J MM) W ATTORNEY July 29, 1930. Q BALDENHOFER-1,771,869

PACKAGING MACHINE Filed April 26, 1928 l5,Sheets-Sheet 9 INVENTOR BY f IA TTORNEY y 29, 1930- c. BALDENHOFER 1,771,869

PACKAGING uAcHIm: I

v Filed A ri; 26, 1928 I 1:; spans-sneer .10

AfTozNL-Ya' y 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April 26, 1928 v 15 Sheets-Sheet 14 wvnvroe/ ATTOKM/L Yd 1 Patented My 29, 1930 85 UNITED ST PATENT: N BALDENHFER, orsramerrnnn, onto. l i

Application filed April 26, 1928. Serial No. 278,105,

My invention relates to packaging mashown in Figure 8' where the cartonis being chines. opened It is the object of my invention to provideFigure 15 is a similar view showing the means for packaging materialthat comes in carton just beingopened '5 strands or filaments, such assteel wool, tex- Figure 16 is a top plan view of the holding tilematerials and food products that are fingers Where the cartonsare-located." formed in attenuated filaments. Figure 17 is a detail viewpartially in sec- Referring to the drawings: tion showing thearrangementiof the carton Figure 1 is a side elevation from theoperelevating mechanism and the carton opening I ators side of themachine; and discharging mechanism; q Figure 2 is a rear elevation'ofthe machine; Figure 18 is a bottom plan view of the cut Figure 3 is aperspective of the machine ofl' mechanism for cutting the filamentsor"-- f th from; th r of strands in predetermined lengths;

Figure 4 is an end elevation on the left hand- Figure 19 is a view ofthe same mechanism side of the machine; .on the lines 19--19 of Figure18;

Figure. 5 is an end elevation on the right Figure 20 is a side elevationpartiallj in hand side of the machine section in detail of the filament'trap door I Figure 6 is a diagrammatic view of the pofeed 1 sition ofthe several parts as a filled carton is Figure 21 is a diagrammatic viewof the 20 about to be removed from the machine; loading spindle in itsretreated inoperative .7 Figure 7 is a similar view with the filledposition; carton removed from the machine and a new Figure 22 is asimilar view in operative po charge of material being accumulated on thesition; a t v s loading spindle; Figure 23 is a section through thespindle Figure 8 is a similar view showing the load head andthe actuatorhead 4 I on the spindle accumulated and the new car- Figure 24 is avertical section through'the {ondbeing opened for the reception of thesuppglrting and driving sleeve of-theloadi-ng";

spin a; Figure 9 is a similar view showing the load Figure 25 is asection on the line 25-25 of being inserted in the new carton; Fi we 24;i I r Fi ure 10 is a top plan view of the carton igure' 26 is a detailfra mentary view of handing mechanism showing the parts in the operativemechanism %or reversing the the position corresponding to those inFigdirection of movement of'the loading spindle ure'8 Wltlltllfi cartonbeing opened and of the cam for retreating-the loading 1 Figure 11 is asimilar view with the openspindle and advancing it showing the parts ining mechanism in withdrawn position, as in t e retreated reversemovement position; Figure 9,, with the holders for the carton stillFigure 27 is a similar view showing the in position but the openingmechanism withparts in advanced forward movement or drawn so that thecarton can be loaded; as in winding position; i Figure 9; Figure 28 is asection on the line 28*28 of 90 Figure 12 is a similar view showing theFigure 2; e parts in position with the holders Withdrawn Figure 29 is asection on the line 29-29of so as to permit of the removal of the loadedFigure 27 looking in the direction of the a carton as in Figures 6 and7; arrows 1 Figure 13 is a detailed view of the holder Figure 30 is asection on theline 30-30 of 5 Y cam which actuates the holder intoholding Figure 27 looking in the direction of the arposition and holdsit there through opening-"rows. and loading of the carton; The machineof my invention is fed with Figure 14 is a section on the line l t-14 ofa plurality of continuous strands of material Figure 10 showing theparts in the position to be loaded, such as steel wool. i ice After thestrands have been fed through the machine a predetermined length down tothe trap door of the feeding chute, I cut od leaving the load in thecarton and, upon being retreated to its initial position, it comes torest until the winding operation has to start again.

re 1 which Then the loaded carton is elevated and removed from themachine. A new carton is moved into osition ready for being opened fromits foiiied position to its open position to receive its load.

In detail, referring to the drawings, my machine consists of thefollowing, parts: The legs 1 support a table consistin ofthe side plates2and 3 on the front and ack respectively of the machine. These sideplates have mounted upon them a tab1e4. Mounted upon this table on theright hand end are a pair of tubular, vertical supports 5 and 6 and onthe left hand end a single tubular support 7 These three supports areadapted to carry the, feed table 8.

Feed table On the feed table 8 is mounted a support in bracket 9 whichcarries a pair of horlzonta bearing sleeves 10 and 11. These sleevescarry respectively the feed driving shaft 12 and the feed driven shaft13.. On these shafts are mounted inions 14 and 15 which intermesh sothat t e two feed shafts turn together.

On each feed shaft there is mounted a feedin head consisting of a disk16 and a plu of parallel spaced feeding fingers 17 extend parallel tothe axis of the shaft on which they are mounted. Within the cylindricalspace formed by these spaced fingers in the resilient tubular member 18.These fin era are so arranged that they interlock or intermesh as theyrotate, one finger on one shaft bein arranged to project between theadjacent ngers onthe other shaftbut not to engage them so that thefibers or strands of wool, or other material, will be engagedfrictionally when passing between these feeders and engage frictionallyby the resilient filler 18 without injuring the'filaments or fibers, butat the same time, properly feedin them as desired.

e Shaft 12, which is the driving shaft be the feeding mechanism, issupported on its rear end upon a bracket 19. The shaft carries asprocket 20 which is actuated by the chain 21. An idler sprocket 22 iscarried on an arm K 23 on the bracket 19 in order to maintain the chaintaut. This chain is, in turn, mounted upon a driving sprocket 24. Thedriving sprocket 24 is carried on a shaft 25 supported in the bracket26. This shaft 25 carries a gear 26' which, in turn, is engaged with anidler car 27 carried on the shaft 28 which, in turn, is supported b thearm29 mounted in the bracket 30. This idler gear meshes with the gear 31that is carried in the bracket 32 and drives the shaft 33. The sprocket24 and its "shaft 25 is driven by means of a sprocket 34 on the shaft 25which, in turn, is actuated by a chain 35. This chain, in turn is drivenby a sprocket 36 which is mounted on the shaft 37. This shaft is carriedin depending brackets 38 on the bottom of the table 8. It also carriesthe driving sprocket 39 that is actuated by the driving chain 40 whichextends to the bottom of the machine where the chain is actuated by thedriving shaft 41 of the speed reducer 42 that is actuated by the motor43.

Out-off mechanism The shaft 33 has its left hand end supported in abracket 44 on the table 8. It is pro.- vided at its free end with abevel gear 45 which meshes with another bevel gear 46. The details ofthis mechanism will be seen in Figures 18 and 19. Figure 19 is viewedfrom the back of the machine. The gear 46 to the cutter shaft 47. Theupper end of the cylindrical member is provided with an arm 53 that isconnected to a helical spring 54, the free end of which is permanentlyattached to the standard 55 carried on the feed table 8.

The lower end of the shaft 47 projects through a bearing sleeve 56 whichis formed as a part of the table 8. It is supported in position by thecollar 57 that is keyed thereto which rests upon the bearing sleeve 56.The lower end of this shaft passes through a stationary shearin shoulder58. The shaft itself projecting be ow the shearing shoulder 58 carries ahorizontally extending swinging knife '59 which is spring pressed inposition by the spring 60. As this knife swings with the shaft 47 itserves to cut off the strands which are being fed by the feed mechanisminto the hopper or guide chute 61. In order to effect this cuttingoperation it is necessary that the knife 59 swings suddenly with greatloo gear 46 and the'pin 49 enga es the pin 51. l

, This serves tomove the shaft 4 with its knife and to rotate itrintocutting position in the i direction of movement when it is actuallyoutare inserted. This opening is directl- .above tial position causingit to cut the strands in.

ting the strands; This movement of theknife to cutting positioncontinues against the resistance of the spring 54 until thepin 49 andthe pin 51 slip by one another where-.

upon the spring 54 moves suddenly to its initWo which are interposedbetween it and the shearing shoulder 58 having'been fed through I I theopening 63. I I

I Guide mechanism The chute 61 constitutesa guiding mechanism. A rearWall 61 and a side--Wall61" form the chute beneath theknife drum 62,,

within whichthe knife 59 rotates. ,Thefeed table 8 has an opening 63 ad]acent the shearing'shoulder 58 through which the strands the areadesignated 61 which is define .on one side by'the uiding platens Theopening thus arrange for the direction of the strands is controlled and,u on occasion, closed. by

the trap. door-.65 w ichprevents the wool from dropping'd'own on thewrapping spin: dle 66 until the spindle is in proper'position forcarrying out the wrapping operation.- The details of this trap doormechanism are seen in Figure 30. The door 65 is mounted upon anactuating shaft 66 carried inspaced brackets 67 upon the table 4 ofthe-machine.

I The end of the shaft 66 is provided with an arm 68 connected toapitman69 which, in

lever 74 that is .pivotally sup or'tedat'75 on a bracket 7 6 carried onthe ta 1e 4; 'The cam "lever 74 projects through an opening 77 in thetable floor and extends to a pointewhere it is engaged by a cam, 78'mounted on the shaft.79. This shaft 79 andthe method of driving it canbe seen clearly-inFigure 28. The shaft 79 is drivenv by the bevel gear80which, in turn, meshes with the bevelipinion I 81 carried onthe shaft 82on the back 'ofthe machine. This shaft 82 carries 'a sprocket .83thatyin turn, is driven by a chain '84 that extends down to alsprocket85 onthe speed reducer shaft 41 that is driven by the mo-' toms.

Spindlloizding mechanism j Thespindle loading mechanismis actuated,1 asto its movement, from inoperative to winding. position and from windingto loading position and back to its initial position by the cam 85mounted on the shaft 79 and driven thereb This oem and associatedrnechanism wi l-befoundillustrated in detail :in Figures 21,22, 23,24,25- 26, 27r-and 28. Thecam' 85 has a-groove86 inwhich travels --.:a,camroller-B'T on the lever ,88 thatis pivot ally supported on the'shaft89 in the sleeve 90 carried on the. inside of the rear wall 3 ofwhen the roller gets to the point designate 91 the. spindle will be atits most advanced position and as the-cam-travels to the positiondesignated'92 the spindle will in its; retreated position. But-it isarranged to dwell, as at 93, while it is inits forward position and'hasreversed itstdirection'of movement to unwind itself from thein'terior ofthe roll of steel wool which constitutes theload desig nated 94 to beplaced in the carton. lHaving disengaged itself by reversinghtherotation and the withdrawal of the knife edges 66' ;on the spindle 66which causes the wool to wrap around thespiridle, the spindle-can thenbe withdrawn to the position shown in Flgure 6. u i

The spindle itselfcarries a sprocket 95 which in turn is driven by achain 96 This chain passes around alarge sprocket 97 'car- 'ried on ashaft 98 beneath thetable 4; The

shaft 98 carries, in turn, a small, sprocket 99 that is'actuated by.a'chain 100. The chain 100 is driven by the sprocket 101. See Figure29.) f The sprocket 101 is mounted on the shaft 102. AThisshaft'ca'rries a sprocket 102. The sprocket 103 is driven by thechain 104 throughla; sprocket 105 that is carried on the stub shaft821"Thestubishafti82 is rear wall'3 lofthe machine. 1The sprocket 8310athetsha' ft 82 is drivenibyi the main bearingchain 84. It will beobserved from Figure28 that the chain 104 'is'cai-ried' on an idler"sprocket 106 which inturn' is' carried on the shaft 109Iwhich isjournaled 'inthe bracket 110., The shaft 102 is vlikewise car-' riedinthe journalbrackets 1 11 and-1:12.

the machine. The cam is-so arranged that,

' mounted in the bearin'gsIOTand108l'on the Reversing mechanism I I Q iThespindle is reversed in directioniwinding the wool'into a load in onedirection and then reversing thespindle movement in order.

to leave the load withifl'fihe carton. ;.,.Ior

this purpose the sprocket 101' is I provided with a toothed hub 113which engages with the toothed side 114 ofithe slidable clutch member115 which is engaged inj'a gi'oove 116 by theyoke 117. The other side ofthis member 115 is provided with teeth 11 8" for engagingwithcorresponding teeth 119 on the hub of'the sprocket 120. This rocket"carries the chain 121, the upper side 0 which engages with thesprocket1220a thefshaft 98-"so'that the direction of movement of the shaft onthe spindle 66 is reversed. t

I The cha'n 121 is carried, on an idler sprocket 123 supported? on a.bracket 124. on the inside of the side wall. 20f the machine.-I

The spindle shaft 66 is carriedin the sleeve 125 ofv the supportinbracket 126'. This. sleeve125. is a bearing-s eeve keyedby the key 127to theshaft 66.. The sprocket 95 is likewise keyed to'this shaft so thatthe shaft can slide'through it while the sprocket can turn withit; Onthe free. endlof the shaft 66 is a head 128 having across member129-fitting within the 'aws 130" on theend of" the lever 88. This crossmember 129' on. either side'extends into a slot 210 formed in up-' rightspaced guide members '13 carried on vator.

the table 4. The shiftin of the'clutch membe r115 iseflected throng theyoke 117 which i is. carriedon the lever 132 whichis pivotedat 133. Thelower end of this lever carriesa cam roller 134 that is actuated by theearn 135. I V

The'spindle shaft proper 66 has an annular onthespindle. v v i 7 Bowsupply mechanism guard 66? for limitingthe position of the load The boxsupply mechanism is shown in detail in Figures 14, 15, 16 and 17 Asupply chute 136 is, provided. in which the cartons in flatfoldedcondition are located upon an elevator 137 This elevator isconnected on either side to chains138 which pass over guidepulleys 139and 140. The free end of the chain depends with a counter balanc ngweight 141 onthe end thereof. Mounted on the shaft 163 is a crank 202connectedto a. -pit'rnan 203- carrying a strap eccentr c. 204 on itsfree end surrounding an eccentric 205 that is mounted on the shaft 206.This eccentric shaft 206 carries a sprocket 207 which isen agedby a.pawl 208 carried in the frame Thus, the elevator is moved by theeccentric stepby step in. synchronism with the corners. 148 and 149 ofthe boxes. The

other corners are designated 15 0 and 151.- The function of these platesis to hold the corners of the boxes yieldi'ngly while the other cornersare being engaged interiorly by the box spreader 152which is introducedinto the interior of thebox for opening the .boxg I Boocbpeningmechanism 2 U 7 c intop "This boxf opening mechanism consists ofatriangular shaped spreader 1:52 that iscarried on the. shaft 153. This;shaft has avcross a member 154 mounted in a yoke 155 of the law: 156'.cross inembeitraiiels in slots 1'57 ofparallel spaced guide members 158on thetable 4.. The lever156 is pivoted near its lower end. at 159.. Itslowerend carries a;

cam: roller 160' whichtravels in theslot 161 ofthe cam- 162 on the shaft163;. This shaft 163 extends between the side walls. of the machine andthrough them and is driven by the sprocket 164 which,,.in turn, isactuated by the chain 165, this chain receiving its power from thesprocket 166 on the shaft79.

The reciprocation of the opener 1'52 serves to open the box. In order tohold this box in its open position and to formlimiting mem-.

bers to keep the box from being pulled out of the-machine when theopeneris thrust on the interior thereof I" provide reciprocating holdi-naws which are moved into position to hol the boxwhile it is being openedand while it is being loaded but' which are withdrawn: at the properinterval after the box is loaded and. when. the box'is being ejectedfrom the machine.

In order toshow the successive stages of 7 operation of this box holdingmechanism and box openmg mechanism, I have provided theviews shown inFigures 10,11, 12, 13, 14, 15, 16 and 17 7 7 I provide a pair of spacedslotted guide members 167 and 168 which are bolted by'the bolts 169tothesupporting blocks 170 mountedon the table top4. On either one ofthese blocks 170 are laterally extending brackets 171, the free ends ofwhich act as supports for the helical springs 172 which are connected attheir inner ends to eyes 173 that are attached to the-slidingzplates174, the innor ends of which are formed into angular box supports forengaging. the upper walls 144 and 145 of the box when it is initsexpanded condition. These box supports are designated 175. Behindeach of the box supports 175 are located the rollers 176 on the verticalshafts 177 mounted on the slides 174.

On either side of the box there are located holder cams consisting offiat plates having fingers 178, cam surfaces 179, and body members 180,such body members 180 having slots 181 through which project bolts 182carried by the spaced cam actuating arms 183. These cam actuatingarms183 are connected togetherby the plates 184. These inner ends of thecamactuating arms so'connected are adapted to move with the cross member154 and to reciprocate in the guides 167 and 168.

The side members 185 carry spring pressed plungers 186 on. their forwardends, which are adapted to yieldingly engage the ends 187 of the holdercams 17 8, 179. These yielding pins*1-86"serve to pressthe holder camssition to move the boxholders 175 into inner position. 1 1 1 v a V BOmejecting mechanism f "ejecting mechanism consists of a pitman 188pivoted on a cross member 189 which works in a slot 157. A spring 190 isconnected tothe sliding members 184 at 191 and to a pin 192 at the pointof ivotal mounting of the pitman 188. The ree end of the pitman isformed into a aw 193 that is pivoted at 194 to the lower end of theelevating lever 195. This elevating lever is pivoted at 196 to a bracket197. The lever carries a cam arm and a box engaging finger. The boxengaging finger is designated 198 and is adapted to extend inside of thebox to lift it when the box holders have been withdrawn laterally by thesprings 172. That portion of the cam armde'signated 199 is adapted torest upon a guide roller 20-0 carried on the spindle 201 on the upright7 when the cam levers so rest on the roller it is in horizontal positionfor engaging with the box. When the cam lever 200 is in engagement withthe roller it is going into the box and when the roller engages with thespindle 201 the box upengages with the spindle 201 the box is be- .ingelevated in filled condition.

Method of operation the ends of the box closed. While this is going onstrands of wool have been fed by the feeding mechanism through theopening 63 into the path of the knife 59. When a box holders 175 towardseach other.

suitable length of wool has been fed through the knife 59 is releasedunder the tension of the spring 74 and suddenly swings across the woolcutting it in two. Its tendency to drop down at its lower end in thepath of the revolving spindle 66 is restrained by the trap door whichdoes not open until the spindle has been moved to a position beneath thetrap door and is revolved in a winding direction. The strands are thenwound on the spindle, as shown in Figure 7, until the entire length ofstrands has been com letely wrapped on the spindle forming the bundle orload 94. While this has been going on the lever 156 has been advanced bythe cam 162..

carrying with it the box opener 152 which has been inserted within thenext folded box. This forward movement is also adapted to press theholder cams forwardly moving the The continued movement of the partswithdraws the box opener but leaves the cams 179 in position to hold thebox holders in their inner position because the cam actuating arms 183can move relatively to the holder cams because of the bolt 182 workingin the slot 181. As soon as the box opener 152 has been withdrawn theload of wool has been completely wound and it is thrust into the openbox, as in Figure 9 by reason of the movement of the lever 88 under theinfluence of the cam 85. Durin this time the spindle 66 is rotating in awinding direction. As soon as it gets within the box the cam 135 gets toa point where it shifts the clutch 115 reversing the direction of thespindle 66 and simultaneously the cam groove 86 working on the roller 87of the lever 88 starts to withdraw the spindle 66 leaving the load 94 inthe box. When the spindle reaches its rearmost position the clutch isagain shifted and the spindle starts to revolve in its forward directionagain, whereupon the rewinding operation takes place as soon as the trapdoor permits the wool to have access to the revolving spindle.

By the time that the load has been deposited in the box the lever 156 iswithdrawn to a point where the bolts 182 et to the end of the slots 181and withdraw t e holder cams allowing the box holders to separate underthe ed in the box the lever 156 is withdrawn to a ejecting finger 198with its cam arm may be inserted within the box and start to elevate thebox as it is pushed backwardly due to the engagement of the jaw 155 withthe cross spindle or guide 189 of the pitman 188 which is attached tothe lower end of the lever 195.

It will be understood that I desire to comprehend within my inventionsuch modifications as may be necessary to adapt it to varyin conditionsand uses.

avin' thus fully described my invention, what I c aim as new and desireto secure by Letters Patent is 1. In a packaging machine for strandmaterial, means to feed the strands, means to sever the strands inpredetermined lengths, means to guide the strands to a winding means towind the strands into a load, means to insert the load in a carton,means to withdraw the winder from the load in the package, means todeliver a carton, and means to. open the carton.

2. In a packaging machine for strand material, means to feed thestrands, means to sever the strands in predetermined lengths,

